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Old 07-06-2008, 12:41 AM   #102
bimmer07
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Quote:
Originally Posted by bigjae1976 View Post
My AA headers sound about the same. I also added Magnaflow cats in place of the 1st resonators.

Headers alone make a big difference. Much deeper in note but I get a somewhat annoying rattle around 2.5k-3k RPM. Wouldn't be a big deal but that's the RPM range I am usually driving in.
did you install them yourself? its a silly thing but i never tightened my o2 sensors down all the way so they made a very annoying rattle around there ocassionally
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